POLYOMMATUS (LYCjENA) MGON. 115 



time they were of a deep yellowish-grey, and the 

 dorsal stripe blackish-olive edged with whitish, and a 

 whitish line along the lateral ridge above the legs ; 

 the subdorsal stripe was triple, consisting of two lines 

 of blackish- olive with a whitish-grey one between them. 

 The surface generally studded with minute blackish 

 points, each bearing a fine short hair. 



By June 11th to 15th they had all assumed their last 

 coats. 



The full-grown larva is about seven lines long, thick 

 in proportion, and of the usual onisciform or Lyccena- 

 shape. 



The head small, and retracted when at rest or 

 alarmed ; the second segment the longest, rounded, and 

 very slightly flattened above, the others as far as the 

 tenth with raised prominences on each side of the back, 

 and a dorsal hollow between them ; the sides sloping 

 to the lateral ridge, the ventral surface rather flattened, 

 the legs all placed well underneath. The last three 

 segments without dorsal ridges, and sloping gradually 

 to the sides and anal extremity, their sides rather con- 

 cave, a very prominent wart on each side of the twelfth ; 

 the segmental divisions not observable on these last, 

 but well cut on all the others. 



In colour the larva is now a bright yellow-green, 

 with the dorsal stripe blackish-brown edged with 

 whitish from the beginning of the third to the end of 

 the tenth segment ; it is widest on the third and fourth, 

 being on them of a rather rounded lozenge form, with 

 a whitish dot near the edge on each side ; a dull dark- 

 brown small plate in front of the second segment, and 

 a broad semilunar shaped blotch of the same colour a 

 little behind, divided in the middle by a fine line of 

 the green ground-colour. The dorsal stripe on the 

 eleventh segment becomes broad and squarish, but 

 resumes its linear shape on the twelfth and thir- 

 teenth. 



The subdorsal line is visible from the beginning of 

 the third to the end of the eleventh segment as a 



